Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual é a quantidade de passos para adh4450iaa5do?
 ###Tabelas: CREATE TABLE new_mexico_places_ranked_by_per_capita_income (new_mexico_places_ranked_by_per_capita_income_id AUTO_INCREMENT PRIMARY KEY, Rank INT, Place VARCHAR, County VARCHAR, Per Capita Income VARCHAR, Median House- hold Income VARCHAR, Median Family Income VARCHAR, Population INT, Number of Households INT) CREATE TABLE list_of_ministers_for_the_police_force (list_of_ministers_for_the_police_force_id AUTO_INCREMENT PRIMARY KEY, Minister VARCHAR, Party VARCHAR, Start date VARCHAR, End date VARCHAR, Prime Minister VARCHAR) CREATE TABLE energy-efficient_'e'_series (energy-efficient_'e'_series_id AUTO_INCREMENT PRIMARY KEY, Model Number VARCHAR, Stepping VARCHAR, Frequency VARCHAR, L2 Cache VARCHAR, Multi 1 VARCHAR, V Core VARCHAR, Socket VARCHAR, Release Date VARCHAR, Part Number(s) VARCHAR) CREATE TABLE kollam_era___calendar (kollam_era___calendar_id AUTO_INCREMENT PRIMARY KEY, Malayalam name VARCHAR, Transliteration VARCHAR, Concurrent Gregorian months VARCHAR, Sanskrit word and meaning VARCHAR, Zodiac sign VARCHAR) CREATE TABLE pdc_premier_event_finals:_5_1_title_4_runner-ups (pdc_premier_event_finals:_5_1_title_4_runner-ups_id AUTO_INCREMENT PRIMARY KEY, Outcome VARCHAR, Year INT, Championship VARCHAR, Opponent in the final VARCHAR, Score (l) = score in legs, (s) = score in sets. VARCHAR)  
SELECT Stepping FROM energy-efficient_'e'_series WHERE Part Number(s) = adh4450iaa5do